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LOCKSS Archive
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Preserved
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2026-02-09
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1 to 4
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 6
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Portico
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Preserved
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2026-02-12
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Preserved : 2009: 1(1-2), 2010: 2(1-6), 2011: 3(1-6), 2012: 4(1-6), 2013: 5(1, S 1, 2-6), 2014: 6(1-9), 2015: 7(1), 2016: 8(1), 2017: 9(1), 2018: 10(1), 2019: 11(1), 2020: 12(1), 2021: 13(1), 2022: 14(1), 2023: 15(1), 2024: 16(1), 2025: 17(1), 2026: 18(1)
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CLOCKSS Archive
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Preserved
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2026-02-09
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1 to 18
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LOCKSS Archive
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Preserved
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2026-02-09
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5 to 10
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LOCKSS Archive
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In Progress
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2026-02-09
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11
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 2 (2 to 6); 3 (1 to 6); 4 (2 to 6); 5 (1 to 3, 5, 6); 6 (1 to 4, 5-8, 9); 7 (1); 8; 9; 11; 12; 13; 14; 15; 16; 17
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 2 (2 to 6); 3 (1 to 6); 4 (2 to 6); 5 (1 to 3, 5, 6); 6 (1 to 4, 5-8, 9); 7 (1); 8; 9; 11; 12; 13; 14; 15; 16; 17
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National Digital Preservation Program, China
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Preserved
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2025-10-23
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Preserved : 1 (2); 2 (1 to 6); 3 (1 to 6); 4 (2 to 6); 5 (1 to 3, 5, 6); 6 (1 to 4, 5-8, 9); 7 (1); 8; 9; 11; 12; 13; 14; 15
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National Digital Preservation Program, China
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Preserved
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2025-12-04
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Preserved : 1 (2); 2 (1 to 6); 3 (1 to 6); 4 (2 to 6); 5 (1 to 3, 5, 6); 6 (1 to 4, 5-8, 9); 7 (1); 8; 9; 11; 12; 13; 14; 15
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 1 (2); 2 (3, 6); 3 (2-6); 4 (2-6); 5 (1-3, 5, 6); 6 (1)
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British Library
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Preserved
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2019-09-18
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Preserved : 1 (1 to 2), 2 (1 to 6), 3 (1 to 6), 4 (1 to 6)
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Library of Congress
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Preserved
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2025-04-07
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2 (1 to 6); 3 (1 to 6); 4 (1 to 6); 5 (1, S1, 2 to 6); 6 (1 to 5-8, 9); 7 (1); 8 (1); 9 (1); 10 (1); 11 (1); 12 (1); 13 (1); 14 (1); 15 (1); 16 (1); 17 (1)
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